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azamat
4 years ago
8

Why does increasing soil salinity have adverse effects on plant cells?

Biology
2 answers:
AlekseyPX4 years ago
7 0
Due to osmosis, the side of the membrane containing more water than the other will release some of its water to the opposite side, until equilibrium is reached. So, if the plant has more water than the soil does, than the plant will lose water (here the cells may shrivel and wilt). If your plant has a higher salinity than the soil around it perhaps it will end up absorbing more water than it is supposed to (here the cells may swell or even burst)
borishaifa [10]4 years ago
3 0
Ezywhen salinity in soil increases the soil becomes hypertonic when compared to cell sap.the movement of particles from a lower concentrated solution to a higher concentrated solution is callede osmosis. in general conditions cell sap is at higher conc. than surrounding media. this allows water and minerals to enter the plant. but when soil is at higher conc. i.e., when its salinity increases the process becomes reversed can you imagine its consequenses?
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Above 380C and below OoC the rate of photosynthesis decreases. Propose a hypothesis to explain why this occurs.
Effectus [21]

<u>Answer:</u>

<em>Enzyme activity decrease at these temperatures. </em>

<u>Explanation:</u>

Photosynthesis is facilitated by the action of various enzymes and involves light and dark reactions.  In <em>light reactions chlorophyll absorbs sunlight and creates ATP AND NADPH</em>. In dark reactions carbon is fixed using the <em>ATP and NADPH. </em>

The efficiency of all these activities depends on the activity of enzymes which depends on the temperature. The optimum temperature range where the enzyme activity is optimal is about <em>10°c - 20°c</em>. At low temperatures and high temperatures enzyme activity is less efficient.

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7 0
3 years ago
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Gre4nikov [31]

Answer:

<h2 /><h2>In my pov:</h2>

  1. The nucleic acids are the most important molecules in living cells beacuse It is the macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.
  2. The proteins are more important because Our body needs protein to stay healthy and work the way it should. More than 10,000 types are found in everything from your organs to your muscles and tissues to your bones, skin, etc. Protein is also a critical part of the processes that fuel your energy and carry oxygen throughout your body in your blood.
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2 years ago
Place the following taxa in order of "inclusion of fewest number of species" to "inclusion of most number of species". 1. Domain
aalyn [17]

Answer:

1)Genus 2)Family 3)Order 4)Phylum 5) Domain

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Species is a large group of living organisms that can breed freely among themselves, exchange genes and produce offspring.

Taxonomic rank is the group of living organisms that are related to each other and most basic rank is species. The lower the rank the smaller it be and contain most similar organisms.

The higher rank comprises by combining of smaller ranks like in your question the family contain many genus and order contain many families and so on. Thatswhy most higher rank would contain maximum number of species.

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galben [10]

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